SIST EN IEC 63380-3:2025

Standard interface for connecting charging stations to local energy management systems - Part 3 Communication protocol and cybersecurity specific aspects (IEC 63380-3:2025)

IEC 63380-3:2025 defines the secure information exchange between local energy management systems and electric vehicle charging stations. The local energy management systems communicate to the charging station controllers via the resource manager.
This document specifies the application of relevant transport protocols; in this case, SPINE (smart premises interoperable neutral-message exchange), SHIP (smart home IP), and ECHONET Lite. Other communication protocols can be defined in future editions

Standardschnittstelle zum Anschluss von Ladestationen an lokale Energiemanagementsysteme - Teil 3: Kommunikationsprotokoll und spezifische Aspekte der Cybersecurity (IEC 63380-3:2025)

Connectivité réseau et échange d’informations des systèmes locaux de gestion des bornes de charge et des systèmes locaux de gestion de l’énergie - Partie 3: Protocole de communication et aspects spécifiques liés à la cybersécurité (IEC 63380-3:2025)

IEC 63380-3:2025 définit l’échange sécurisé d’informations entre les systèmes locaux de gestion de l’énergie et les bornes de charge pour véhicules électriques. Les systèmes locaux de gestion de l’énergie communiquent avec les contrôleurs de charge par l’intermédiaire du gestionnaire des ressources.
Le présent document spécifie l’application des protocoles de transport pertinents: en l’occurrence, SPINE (Smart Premises Interoperable Neutral-Message Exchange), SHIP (Smart Home IP) et ECHONET Lite. D’autres protocoles de communication peuvent être définis dans les prochaines éditions.

Standardni vmesnik za povezovanje polnilnih postaj z lokalnimi sistemi za upravljanje energije - 3. del: Posebni vidiki komunikacijskih protokolov in kibernetske varnosti (IEC 63380-3:2025)

Standard IEC 63380-3:2025 opredeljuje varno izmenjavo informacij med lokalnimi sistemi za upravljanje energije in polnilnimi postajami za električna vozila. Lokalni sistemi za upravljanje energije komunicirajo s krmilniki polnilnih postaj prek upravljalnika virov.  Ta dokument določa uporabo ustreznih transportnih protokolov; v tem primeru SPINE (Smart Premises Interoperable Neutral-Message Exchange), SHIP (Smart Home IP) in ECHONET Lite. Drugi komunikacijski protokoli bodo morda opredeljeni v prihodnjih izdajah.

General Information

• Status: Published
• Public Enquiry End Date: 30-Jul-2024
• Publication Date: 05-Oct-2025
• ICS: 29.240.99 - Other equipment related to power transmission and distribution networks
• ICS: 43.120 - Electric road vehicles
• Technical Committee: CEV - Electric passenger and commercial vehicles
• Current Stage: 6060 - National Implementation/Publication (Adopted Project)
• Start Date: 26-Sep-2025
• Due Date: 01-Dec-2025
• Completion Date: 06-Oct-2025
• Directive: 2014/94/EU - Directive 2014/94/EU of The European Parliament and of The Council of 22 October 2014 on the deployment of alternative fuels infrastructure
• Directive: 2023/1804 - Regulation (EU) 2023/1804 of the European Parliament and of the Council of 13 September 2023 on the deployment of alternative fuels infrastructure, and repealing Directive 2014/94/EU
• Directive: 2023/1804-1 - Regulation (EU) 2023/1804 of the European Parliament and of the Council of 13 September 2023 on the deployment of alternative fuels infrastructure, and repealing Directive 2014/94/EU
• Mandate: M/581 - Standardisation Request as regards communication exchange, electricity, and hydrogen supply for road, maritime transport and inland navigation in support of Directive 2014/94/EU and its planned revision under the ‘Fit for 55’package
• Ref Project: EN IEC 63380-3:2025 - Standard interface for connecting charging stations to local energy management systems - Part 3 Communication protocol and cybersecurity specific aspects

Overview

EN IEC 63380-3:2025 specifies communication protocol and cybersecurity specific aspects for the standard interface that connects electric vehicle (EV) charging stations to local energy management systems (LEMS). It defines secure information exchange where LEMS communicate to charging station controllers via a resource manager. The standard prescribes the application of transport and messaging technologies - notably SPINE, SHIP, and ECHONET Lite - and sets cybersecurity, discovery, registration and commissioning rules to ensure interoperable, secure on-premises EV charging control.

Key topics and technical requirements

• Protocol stack and architectures: Roles of SPINE (datagram format, headers, payloads), SHIP (IP/TCP-based messaging, WebSocket framing) and ECHONET Lite for device-level interaction and mapping to data models.
• Datagram and message structure: SPINE datagram composition (header and payload), address types (device/entity/feature) and communication modes (simple vs enhanced).
• Discovery and commissioning: Functional commissioning steps including detailed discovery, destination lists, binding, subscription and use-case discovery for secure setup and device onboarding.
• Transport & session security: Use of TCP, TLS (cipher suite and session considerations), WebSocket over TLS for reliable and secure transport; references to relevant IETF RFCs for TLS, WebSocket and related cryptography.
• Message formats and transformations: JSON text representation and XML↔JSON transformation guidance to support interoperable data exchange and integration with LEMS.
• Key management & credentials: Certificate-based authentication, public key handling, symmetric key considerations, SHIP node PINs, commissioning tool procedures and use of QR codes for secure provisioning.
• Normative references: Cross-references to IEC 63380-2 (data model mapping), IEC 62394, and IETF standards (RFCs) for cryptographic and transport specifics.

Applications and who uses this standard

• EV charging station manufacturers implementing interoperable controllers and resource managers.
• Local energy management system (LEMS) vendors ensuring secure control and load balancing of charging assets.
• System integrators & installers responsible for commissioning, discovery and binding of charging infrastructure on premises.
• Network operators, cybersecurity engineers and test labs validating compliance, secure key management and protocol conformance.
• Practical use cases include local load management, secure charge authorization, demand response coordination and on-site interoperability between EV chargers and building energy systems.

Related standards

• EN IEC 63380-2 - specific data model mapping for charger↔LEMS integration (referenced normative mapping).
• Relevant IETF RFCs and IEC publications for TLS, WebSocket, X.509 certificates and cryptographic suites that underpin the cybersecurity requirements.

Keywords: EN IEC 63380-3:2025, EV charging, local energy management systems, SPINE, SHIP, ECHONET Lite, communication protocol, cybersecurity, TLS, WebSocket, key management, interoperability.

Standards Content (Sample)

SLOVENSKI STANDARD
01-november-2025
Standardni vmesnik za povezovanje polnilnih postaj z lokalnimi sistemi za
upravljanje energije - 3. del: Posebni vidiki komunikacijskih protokolov in
kibernetske varnosti (IEC 63380-3:2025)
Standard interface for connecting charging stations to local energy management
systems - Part 3 Communication protocol and cybersecurity specific aspects (IEC 63380-
3:2025)
Standardschnittstelle zum Anschluss von Ladestationen an lokale
Energiemanagementsysteme - Teil 3: Kommunikationsprotokoll und spezifische Aspekte
der Cybersecurity (IEC 63380-3:2025)
Connectivité réseau et échange d’informations des systèmes locaux de gestion des
bornes de charge et des systèmes locaux de gestion de l’énergie - Partie 3: Protocole de
communication et aspects spécifiques liés à la cybersécurité (IEC 63380-3:2025)
Ta slovenski standard je istoveten z: EN IEC 63380-3:2025
ICS:
29.240.99 Druga oprema v zvezi z Other equipment related to
omrežji za prenos in power transmission and
distribucijo električne energije distribution networks
43.120 Električna cestna vozila Electric road vehicles
2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.

EUROPEAN STANDARD EN IEC 63380-3

NORME EUROPÉENNE
EUROPÄISCHE NORM September 2025
ICS 29.240.99; 43.120
English Version
Standard interface for connecting charging stations to local
energy management systems - Part 3 Communication protocol
and cybersecurity specific aspects
(IEC 63380-3:2025)
Interface normale pour la connexion de bornes de charge Standardschnittstelle zum Anschluss von Ladestationen an
aux systèmes locaux de gestion de l'énergie - Partie 3: lokale Energiemanagementsysteme - Teil 3:
Protocole de communication et aspects spécifiques liés à la Kommunikationsprotokoll und spezifische Aspekte der
cybersécurité Cybersecurity
(IEC 63380-3:2025) (IEC 63380-3:2025)
This European Standard was approved by CENELEC on 2025-08-12. CENELEC members are bound to comply with the CEN/CENELEC
Internal Regulations which stipulate the conditions for giving this European Standard the status of a national standard without any alteration.
Up-to-date lists and bibliographical references concerning such national standards may be obtained on application to the CEN-CENELEC
Management Centre or to any CENELEC member.
This European Standard exists in three official versions (English, French, German). A version in any other language made by translation
under the responsibility of a CENELEC member into its own language and notified to the CEN-CENELEC Management Centre has the
same status as the official versions.
CENELEC members are the national electrotechnical committees of Austria, Belgium, Bulgaria, Croatia, Cyprus, the Czech Republic,
Denmark, Estonia, Finland, France, Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia, Lithuania, Luxembourg, Malta, the
Netherlands, Norway, Poland, Portugal, Republic of North Macedonia, Romania, Serbia, Slovakia, Slovenia, Spain, Sweden, Switzerland,
Türkiye and the United Kingdom.

European Committee for Electrotechnical Standardization
Comité Européen de Normalisation Electrotechnique
Europäisches Komitee für Elektrotechnische Normung
CEN-CENELEC Management Centre: Rue de la Science 23, B-1040 Brussels
© 2025 CENELEC All rights of exploitation in any form and by any means reserved worldwide for CENELEC Members.
Ref. No. EN IEC 63380-3:2025 E

European foreword
The text of document 69/1051/FDIS, future edition 1 of IEC 63380-3, prepared by TC 69 "Electrical
power/energy transfer systems for electrically propelled road vehicles and industrial trucks" was
submitted to the IEC-CENELEC parallel vote and approved by CENELEC as EN IEC 63380-3:2025.
The following dates are fixed:
• latest date by which the document has to be implemented at national (dop) 2026-09-30
level by publication of an identical national standard or by endorsement
• latest date by which the national standards conflicting with the (dow) 2028-09-30
document have to be withdrawn
Attention is drawn to the possibility that some of the elements of this document may be the subject of
patent rights. CENELEC shall not be held responsible for identifying any or all such patent rights.
This document has been prepared under a standardization request addressed to CENELEC by the
European Commission. The Standing Committee of the EFTA States subsequently approves these
requests for its Member States.
Any feedback and questions on this document should be directed to the users’ national committee. A
complete listing of these bodies can be found on the CENELEC website.
Endorsement notice
The text of the International Standard IEC 63380-3:2025 was approved by CENELEC as a European
Standard without any modification.
Annex ZA
(normative)
Normative references to international publications
with their corresponding European publications
The following documents are referred to in the text in such a way that some or all of their content
constitutes requirements of this document. For dated references, only the edition cited applies. For
undated references, the latest edition of the referenced document (including any amendments)
applies.
NOTE 1 Where an International Publication has been modified by common modifications, indicated by (mod),
the relevant EN/HD applies.
NOTE 2 Up-to-date information on the latest versions of the European Standards listed in this annex is
available here: www.cencenelec.eu.
Publication Year Title EN/HD Year
IEC 62394 - Service diagnostic interface for consumer - -
electronics products and networks -
Implementation for echonet
IEC 63380-2 - Standard interface for connecting charging IEC 63380-2 -
stations to local energy management systems -
Part 2: Specific data model mapping
ISO/IEC 14543-4-3 2015 Information technology - Home Electronic - -
Systems (HES) architecture - Part 4-3:
Application layer interface to lower
communications layers for network enhanced
control devices of HES Class 1
IETF RFC 793 1981 Transmission Control Protocol - DARPA - -
Internet Program Protocol Specification
IETF RFC 3280 2002 Internet X.509 Public Key Infrastructure - -
Certificate and Certificate Revocation List
(CRL) Profile
IETF RFC 6455 2011 The WebSocket Protocol - -
IETF RFC 6763 - DNS-Based Service Discovery - -
IETF RFC 5246 - The Transport Layer Security (TLS) Protocol - -
Version 1.2
IETF RFC 5289 - TLS Elliptic Curve Cipher Suites with SHA- - -
256/384 and AES Galois Counter Mode (GCM)
IETF RFC 8422 - Elliptic Curve Cryptography (ECC) Cipher - -
Suites for Transport Layer Security (TLS)
Versions 1.2 and Earlier
IEC 63380-3 ®
Edition 1.0 2025-07
INTERNATIONAL
STANDARD
Standard interface for connecting charging stations to local energy management
systems –
Part 3: Communication protocol and cybersecurity specific aspects
ICS 29.240.99; 43.120 ISBN 978-2-8327-0508-7

IEC 63380-3:2025-07(en)
IEC 63380-3:2025 © IEC 2025
CONTENTS
FOREWORD. 6
INTRODUCTION . 8
1 Scope . 10
2 Normative references . 10
3 Terms, definitions, and abbreviated terms . 11
3.1 Terms and definitions . 11
3.2 Abbreviated terms . 14
4 Overview . 15
5 SPINE protocol . 15
5.1 General . 15
5.2 Architecture overview . 16
5.2.1 General rules . 16
5.2.2 Common data types . 16
5.2.3 Address level details . 21
5.3 SPINE datagram . 22
5.3.1 Overview . 22
5.3.2 Header . 23
5.3.3 Payload . 31
5.4 Communication modes . 45
5.4.1 General . 45
5.4.2 Simple communication mode . 46
5.4.3 Enhanced communication mode . 46
5.5 Functional commissioning . 47
5.5.1 General . 47
5.5.2 Detailed discovery. 47
5.5.3 Destination list . 63
5.5.4 Binding . 66
5.5.5 Subscription . 75
5.5.6 Use case discovery . 82
6 SHIP . 85
6.1 Architecture overview . 85
6.1.1 General . 85
6.1.2 General considerations on closing communication channels . 87
6.1.3 SHIP node parameters . 87
6.2 Registration . 88
6.2.1 General . 88
6.2.2 Successful registration . 89
6.2.3 Registration details and recommendations (informative) . 89
6.3 Reconnection . 90
6.3.1 General . 90
6.3.2 Reconnection details in case of changed key material (informative) . 90
6.4 Discovery . 91
6.4.1 General . 91
6.4.2 Service instance . 91
6.4.3 Service name . 91
6.4.4 Multicast DNS name . 92
IEC 63380-3:2025 © IEC 2025
6.4.5 Recommendations for re-discovery . 94
6.5 TCP . 95
6.5.1 General . 95
6.5.2 Limited connection capabilities . 95
6.5.3 Online detection . 95
6.5.4 TCP connection establishment . 96
6.5.5 Retransmission timeout . 96
6.6 TLS . 96
6.6.1 General . 96
6.6.2 Cipher suites . 97
6.6.3 Maximum fragment length . 98
6.6.4 TLS compression . 98
6.6.5 Renegotiation . 98
6.6.6 Session resumption . 98
6.6.7 TLS extension for ECC . 99
6.6.8 TLS probing . 100
6.7 WebSocket . 100
6.7.1 General . 100
6.7.2 TLS dependencies . 100
6.7.3 Opening handshake . 101
6.7.4 Data framing . 101
6.7.5 Keep-alive connection . 101
6.8 Message representation using JSON text format . 102
6.8.1 General . 102
6.8.2 Definitions . 102
6.8.3 Examples for each type . 103
6.8.4 XML to JSON transformation . 103
6.8.5 JSON to XML transformation . 109
6.9 Key management . 110
6.9.1 General . 110
6.9.2 Certificates . 110
6.9.3 SHIP node specific public key . 115
6.9.4 Verification procedure . 117
6.9.5 Symmetric key . 123
6.9.6 SHIP node PIN. 124
6.9.7 SHIP commissioning tool . 125
6.9.8 QR code . 127
6.10 SHIP data exchange . 130
6.10.1 General . 130
6.10.2 Terms in the context of SHIP data exchange . 131
6.10.3 Protocol architecture/hierarchy . 132
6.10.4 SHIP message exchange . 133
6.11 Well-known protocolId . 173
7 ECHONET Lite . 173
Annex A (normative) SHIP XSD . 175
Bibliography . 180

IEC 63380-3:2025 © IEC 2025
Figure 1 – Overview of communication protocols within IEC 63380-3 . 15
Figure 2 – PossibleOperationsType . 19
Figure 3 – DeviceAddressType . 20
Figure 4 – EntityAddressType . 20
Figure 5 – FeatureAddressType . 20
Figure 6 – SPINE datagram . 23
Figure 7 – SPINE header . 24
Figure 8 – SPINE payload . 32
Figure 9 – Example of selectors part (extract) with entity address part . 44
Figure 10 – Communication modes of SPINE devices A, B and C . 45
Figure 11 – Discovery example . 47
Figure 12 – Hierarchy types . 48
Figure 13 – Function Discovery Example over Feature Description . 49
Figure 14 – nodeManagementDetailedDiscoveryData function overview, part 1 . 52
Figure 15 – nodeManagementDetailedDiscoveryData function overview, part 2:
deviceInformation.description . 53
Figure 16 – nodeManagementDetailedDiscoveryData function overview, part 3:
entityInformation.description . 53
Figure 17 – nodeManagementDetailedDiscoveryData function overview, part 4:
featureInformation.description . 54
Figure 18 – nodeManagementDestinationListData function overview, part 1 . 65
Figure 19 – nodeManagementDestinationListData function overview, part 2 . 65
Figure 20 – Binding request . 68
Figure 21 – nodeManagementBindingRequestCall function overview . 68
Figure 22 – nodeManagementBindingData function overview . 70
Figure 23 – nodeManagementBindingDeleteCall function overview . 72
Figure 24 – Subscription request . 76
Figure 25 – nodeManagementSubscriptionRequestCall function overview . 76
Figure 26 – nodeManagementSubscriptionData function overview . 78
Figure 27 – nodeManagementSubscriptionDeleteCall function overview . 80
Figure 28 – nodeManagementUseCaseData function . 83
Figure 29 – Physical connections in the overall system . 86
Figure 30 – SHIP stack overview . 86
Figure 31 – Full TLS 1.2 handshake with mutual authentication . 97
Figure 32 – Quick TLS Handshake with Session Resumption . 99
Figure 33 – Easy mutual authentication with QR codes and smart phone . 124
Figure 34 – QR code model 2, "low" error correction code level, 0,33mm/module, with
SKI and PIN . 129
Figure 35 – QR code model 2, "low" error correction code level, 0,33 mm/module, with
all values . 130
Figure 36 – QR code model 2, "low" error correction code level, 0,33 mm/module, with
brainpoolP256r1 SKI and brainpoolP384r1 SKI . 130
Figure 37 – Protocol architecture and hierarchy . 132
Figure 38 – CMI Message sequence example . 136
IEC 63380-3:2025 © IEC 2025
Figure 39 – Connection state "hello" sequence example without prolongation request:
"A" and "B" already trust each other; "B" is slower/delayed . 143
Figure 40 – Connection state "hello" sequence example with prolongation request . 144
Figure 41 – Connection State "Protocol Handshake" message sequence example . 149
Figure 42 – Connection state "PIN verification" message sequence example (begin) . 158
Figure 43 – ECHONET Lite frame format . 174

Table 1 – Structure of the SPINE datagram . 23
Table 2 – cmdClassifier values and kind of messages for a message "M" and scope of
related acknowledgement messages . 27
Table 3 – Structure of the SPINE header . 30
Table 4 – Elements of the SPINE payload . 32
Table 5 – Example table (template) . 36
Table 6 – Considered cmdOptions combinations for classifier "write" . 37
Table 7 – Considered cmdOptions combinations for classifier "notify" . 38
Table 8 – Considered cmdOptions combinations for classifier "read" . 39
Table 9 – Considered cmdOptions combinations for classifier "reply" . 39
Table 10 – Address path examples . 43
Table 11 – Notify/response list of entities and their corresponding features with
nodeManagementDetailedDiscoveryData . 54
Table 12 – nodeManagementDetailedDiscoveryDataSelectors . 61
Table 13 – Notify/response of DestinationList information with
nodeManagementDestinationListData . 66
Table 14 – Binding request with nodeManagementBindingRequestCall . 68
Table 15 – nodeManagementBindingData holds list of binding entries . 71
Table 16 – Remove binding with nodeManagementBindingDeleteCall . 73
Table 17 – Subscription request with nodeManagementSubscriptionRequestCall . 77
Table 18 – nodeManagementSubscriptionData holds list of subscription entries . 79
Table 19 – Remove subscription with nodeManagementSubscriptionDeleteCall . 81
Table 20 – nodeManagementUseCaseData . 84
Table 21 – SHIP parameters default values . 87
Table 22 – Mandatory parameters in the TXT record. 93
Table 23 – Optional parameters in the TXT record . 93
Table 24 – Mapping from the XSD types to JSON types . 103
Table 25 – Transformation of a simple type . 104
Table 26 – Mapping from the XSD compositors to JSON types . 104
Table 27 – Examples for XML and JSON representations . 106
Table 28 – Example transformation of several combined XSD item types . 108
Table 29 – Example for JSON to XML transformation . 110
Table 30 – Trust levels . 123
Table 31 – MessageType values . 134
Table 32 – Structure of SmeHelloValue of SME "hello" message . 137
Table 33 – Structure of SmeProtocolHandshakeValue of SME "Protocol Handshake"
message . 145
IEC 63380-3:2025 © IEC 2025
Table 34 – Structure of SmeProtocolHandshakeErrorValue of SME "Protocol
Handshake Error" message . 146
Table 35 – Values of Sub-element "error" of messageProtocolHandshakeError . 148
Table 36 – Structure of SmeConnectionPinStateValue of SME "PIN state" message. 150
Table 37 – Structure of SmeConnectionPinInputValue of SME "pin input" message . 151
Table 38 – Structure of SmeConnectionPinErrorValue of SME "Pin error" message . 151
Table 39 – Values of Sub-element "error" of connectionPinError . 157
Table 40 – Structure of MessageValue of "data" message . 159
Table 41 – Structure of SmeConnectionAccessMethodsRequestValue of SME "Access
methods request" message . 162
Table 42 – Structure of SmeConnectionAccessMethodsValue of SME "Access
methods" message . 162
Table 43 – Structure of SmeConnectionCommissioningRequestValue of SME
"commissioning request" message . 164
Table 44 – Structure of SmeConnectionCommissioningResponseValue of SME
"commissioning response" message . 165
Table 45 – Structure of SmeConnectionKeyMaterialRequestValue of SME "key
material request" message . 165
Table 46 – Structure of SmeConnectionKeyMaterialValue of SME "key material"
message . 166
Table 47 – Structure of SmeConnectionKeyMaterialResponseValue of SME "key
material response" message . 167
Table 48 – Structure of SmeConnectionKeyMaterialDeleteValue of SME "key material
delete" message . 168
Table 49 – Structure of SmeConnectionKeyMaterialDeleteResponseValue of SME "key
material delete response" message . 169
Table 50 – Structure of SmeConnectionKeyMaterialStateValue of SME "key material
state" message . 170
Table 51 – Structure of SmeConnectionKeyMaterialStateResponseValue of SME "key
material state response" message . 170
Table 52 – Structure of SmeConnectionKeyMaterialStateRequestValue of SME "key
material state request" message . 171
Table 53 – Structure of SmeCloseValue of SME "close" message . 172
Table 54 – Well-known values for the element "protocolId" . 173

IEC 63380-3:2025 © IEC 2025
INTERNATIONAL ELECTROTECHNICAL COMMISSION
____________
Standard interface for connecting charging
stations to local energy management systems -
Part 3: Communication protocol and cybersecurity specific aspects

FOREWORD
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shall not be held responsible for identifying any or all such patent rights.
IEC 63380-3 has been prepared by IEC technical committee 69: Electrical power/energy
transfer systems for electrically propelled road vehicles and industrial trucks. It is an
International Standard.
The text of this International Standard is based on the following documents:
Draft Report on voting
69/1051/FDIS 69/1060/RVD
Full information on the voting for its approval can be found in the report on voting indicated in
the above table.
The language used for the development of this International Standard is English.
IEC 63380-3:2025 © IEC 2025
This document was drafted in accordance with ISO/IEC Directives, Part 2, and developed in
accordance with ISO/IEC Directives, Part 1 and ISO/IEC Directives, IEC Supplement, available
at www.iec.ch/members_experts/refdocs. The main document types developed by IEC are
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In this document, all text record fields are written in lowercase Courier font, since they belong
to protocol information/binary data exchange.
A list of all parts in the IEC 63380 series, published under the general title Standard interface
for connecting charging stations to local energy management systems, can be found on the IEC
website.
The committee has decided that the contents of this document will remain unchanged until the
stability date indicated on the IEC website under webstore.iec.ch in the data related to the
specific document. At this date, the document will be
• reconfirmed,
• withdrawn, or
• revised.
IEC 63380-3:2025 © IEC 2025
INTRODUCTION
The expansion of renewable energy and the simultaneous reduction in conventional generation
of electricity result in new power flows and loads on the equipment in the grid and at the house
connection point. At the same time, electrical consumers with high power consumption are
increasingly being installed in low-voltage systems in private customer systems. These include
charging systems for electric vehicles and heat pumps. These two developments can
temporarily lead to peak loads and bottlenecks in the network. An expansion of the distribution
grids for the comparatively few hours of high simultaneous power consumption is not considered
economically sensible. The legislator of energy efficiency has therefore introduced the concept
of "network-friendly control of controllable consumer devices".
It is crucial to define a standardized interface for the connected consumers and generating
facilities, which also includes the charging infrastructure for electric vehicles. When developing
a local, standardized interface, it is important to make a fundamental distinction between the
terms "power management" and "energy management".
In order to avoid an overload and the associated emergency shutdown due to specified power
limits in the property while all consumers are drawing electricity at the same time – especially
heating and air conditioning technology as well as charging infrastructure –, power management
is of great urgency. The maximum load at the grid connection point can therefore be reduced.
Accordingly, it is important to give priority to local power management over, for example,
optimization of operations and tariffs or desired charging plans.
Furthermore, the tariff-optimized operation can be pursued within the limits specified by the grid
infrastructure – controlled by the energy management system. As a consequence, a charging
infrastructure will be able to transmit information about procurement and tariff-optimized
operation from the local energy management of the property to the electric vehicle so that it
can coordinate its charging plan according to local demands. Effective coordination becomes
essential if generating systems are used within the property in order to achieve the highest
possible self-consumption of electricity.
The long-term goal is to buffer power and energy bottlenecks within a property using the energy
stored in the vehicle, which also brings the topic of energy recovery into focus; this aspect
needs to be considered during the development of a standardized interface for local power and
energy management.
The aim of the IEC 63380 series is to define a standard interface for connecting charging
stations to local energy management systems and the information exchange.
The IEC 63380 series specifies use cases, the sequences of information exchange, the data
models as well as the communication protocols to be used and includes all aspects of local
energy management of charging stations.
The IEC 63380 series covers scenarios where the charging infrastructure is managed by the
entity that operates the private electrical network, and local energy management systems are
used for local load management.
The IEC 63380 series addresses the energy management in installations with forward and
bidirectional charging whereby the overall energy management is ensured by the customer
energy manager.
The IEC 63380 series does not cover the secure information exchange between the charging
station and the IT backend system(s), such as the management of energy transfer of the charge
session, contractual and billing data, provided by the IT backend.
IEC 63380-3:2025 © IEC 2025
The IEC 63380 series consists of the following structure, describing the interface between
charging stations and local energy management systems;
• IEC 63380-1 : General requirements, use cases and abstract messages;
• IEC 63380-2: Specific data model mapping;
• IEC 63380-3: Communication protocol and cybersecurity specific aspects;
• IEC 63380-4 : Test specifications.

___________
1 Under preparation: Stage at the time of publication: IEC/CFDIS 63380-1:2025.
2 Under preparation. Stage at the time of publication: IEC/ACD 63380-4:2021.
IEC 63380-3:2025 © IEC 2025
1 Scope
This part of IEC 63380 defines the secure information exchange between local energy
management systems and electric vehicle charging stations. The local energy management
systems communicate to the charging station controllers via the resource manager.
This document specifies the application of relevant transport protocols; in this case, SPINE
(smart premises interoperable neutral-message exchange), SHIP (smart home IP), and
ECHONET Lite. Other communication protocols can be defined in future editions.
2 Normative references
The following documents are referred to in the text in such a way that some or all of their content
constitutes requirements of this document. For dated references, only the edition cited applies.
For undated references, the latest edition of the referenced document (including any
amendments) applies.
IEC 62394, Service diagnostic interface for consumer electronics products and networks –
Implementation for ECHONET
IEC 63380-2, Standard interface for connecting charging stations to local energy management
systems – Part 2: Specific data model mapping
ISO/IEC 14543-4-3:2015, Information technology, Home Electronic Systems (HES) architecture
– Part 4-3: Application layer interface to lower communications layers for network enhanced
control devices of HES Class 1
IETF RFC 793:1981, Transmission Control Protocol
IETF RFC 3280:2002, Internet X.509 Public Key Infrastructure Certificate and Certificate
Revocation List (CRL) Profile
IETF RFC 6455:2011, The WebSocket Protocol
IETF RFC 6763, DNS-Based Service Discovery
IETF RFC 5246, The Transport Layer Security (TLS) Protocol Version 1.2
IETF RFC 5289, TLS Elliptic Curve Cipher Suites with SHA-256/384 and AES Galois Counter
Mode (GCM)
IETF RFC 8422, Elliptic Curve Cryptography (ECC) Cipher Suites for Transport Layer Security
(TLS) Versions 1.2 and earlier
IEC 63380-3:2025 © IEC 2025
3 Terms, definitions, and abbreviated terms
For the purposes of this document, the following terms and definitions apply.
ISO and IEC maintain terminology databases for use in standardization at the following
addresses:
• IEC Electropedia: available at https://www.electropedia.org/
• ISO Online browsing platform: available at https://www.iso.org/obp
3.1 Terms and definitions
3.1.1
CA
certificate authority
certification authority
entity which can provide a digital signature for certificates
Note 1 to entry: Other SHIP nodes can check this digital signature with the certificate from the CA itself,
the "CA-c
...